It makes no sense to use an original Leica Visoflex with a µFT-Camera. Because the µFT-Cameras have good Viewer/Displays. If you use the Visoflex, you have to move the mirror by hand befor you can take the picture. Notice that the flange focal distance of the combination is much bigger than µFT/FT. I made the pictures of the combination you have seen at 43rumors only to demonstrate the patent. The front mount of the Visoflex is Leica-M-Mount. You will find adaptors on the Internet.